#include "stdio.h"

int main(){
    void hanoi(int n,char one,char two,char three);
    int m;
    scanf("%d",&m);
    printf("The step to move %d diskes:\n",m);
    hanoi(m,'A','B','C');
}

void hanoi(int n,char one,char two,char three){
    void move(char x,char y);
    if(n==1) move(one,three);
    else {
        hanoi(n-1,one,three,two);
        move(one,three);
        hanoi(n-1,two,one,three);
    }
}

void move(char x,char y){
    printf("%c->%c\n",x,y);
}